Toono is a teenage boy of average height, and a slender frame. He has medium-length, somewhat tousled brown hair, olive-green eyes, and fair skin. Toono initially comes off as shy and reserved, as he is the new transfer kid and has trouble interacting with other people. He gets along only with Yaguchi at first as he sees his classmate as his idol and angel, due to Yaguchi's kindness. However, Toono is not afraid of openly expressing his dismay and bewilderment regarding the other members' lewd and inappropriate actions. Despite his visible discomfort of their actions, he does care about his senpai and gets along with them.

Yaguchi is rather short in stature compared to the other characters, with a somewhat athletics build. He has shoulder-length caramel-brown hair, which he leaves tousled, save for a small ponytail tied on the left side of his head. Yaguchi's eyes are of a similar shade of brown as his hair, and he has a somewhat tanned complexion. Yaguchi initially comes off as a popular, cheerful, and charming person. His interactions with his peers show that Yaguchi is kind and friendly, as well as considerate, such as when he gave Touno Morimori's legendary pudding bread when he realised that the other boy missed lunch.

He is characterized by his pink hair, extroverted and perverted personality, and his complex relationship with his childhood friend, Tamura Yui, and his love interest, Toru Fujisaki. He is portrayed as bisexual.

Yui Tamura is a supporting character in the anime and manga series Yarichin Bitch Club, known as a second-year student at Morimori Academy and a member of the titular club, often described as being "like a puppy but has a bad personality".

Shikatani is a boy of average height with a slender frame. He has somewhat unkept dark purple hair, light lavender eyes, and a fair complexion. Shikatani's eyelashes are relatively long, and he dons a pair of black rimless glasses.

Appearance: Blond hair, blue eyes, fair complexion, and is shorter than other members. Personality: Appears innocent but is straightforward, sneaky, and perceptive; he is also caring towards his club members

Koshiro Itome (糸目 幸士郎, Itome Kōshirō) is a supporting character in the manga and anime series Yarichin☆Bitch Club (Yaribu). He is a third-year student at Morimori Academy, known as the tallest character 6'2") with a quiet, reserved personality. He has a rather pale complexion and narrow, lilac-grey eyes. shoulder-length, light ash-blond hair is considerably tousled, with long bang to the right that partially cover the right side of his face.